Machine for securing wire hoops upon pails and like structures.



R. SCHLEICHER. MACHINE roaswunmc WIRE HOOPS UPON PAILSAND LIKE smucwmzs.

APPLICATION FILED JAN. H. l9 l8.

5 SHEETS-SHEET I.

Patented Dec. 31, 1918.

In: non: nun m. rumumn. vunmumn. n. c.

R. SCHLEICHER. MACHINE FOR SECUFHNG WIRE HOOPS uPoN FAILS AND LIKESTRUCTURES.

APPLICATION FILED JANJI. 1918.

Patented Dec. 31, 1918.

5 SHEETS-SHEET 2.

m: mums "was ca. rnoyo-unia vusumcmn. A Q

R. SCHLEICHER. MACHINE FOR SECURING WIRE HOOPS UPON PAILS AND LIKESTRUQTURES.

' Mme/anon FILED MN. n. ma. Y 1,289,554,, Patented Dec. 31,1918.

5 SHEETS-SHEET 3.

in: M0 In In as ea. mmunm, wlunmcrlw. a c

R. SCHLEICHER.

MACHINE FOR SECURING WIRE HOOPS UPON PAILS AND LIKE STRUCTURES.

APPLICATION FILED JAN. H. 1918.

1,259,554,. Patented bee. 31,1918.

SSHEETS-SHEET 4.

R. SCHLEECHER.

MACHINE FOR SECURING WIRE HOOPS UPON FAILS AND LIKE STRUCTURES.APPLICATION FILED JAN. 11. ms.

1,289,55% Patented Dc'. 31, 1918.

5 SHEETS-SHEET 5.

ROBERT SCIILEICHER, OF LOUISVILLE, KENTUCKY, ASSIGNOR TO MENGEL BOXCOMPANY, OF LOUISVILLE, KENTUCKY, A CORPORATION OF NEW JERSEY.

MACHINE FOR SECURING WIRE HOOPS UPON PAILS AND LIKE STRUCTURES.

Specification of Letters Patent.

Patented Dec. 31, 1918.

Application filed January 11, 1918. SerialNo. 211,363.

To all whom it may concern:

Be it known that I, ROBERT Sorrnnronnn, a citizen of the United States,residing at Louisville, in the county of Jefferson and State ofKentucky, have invented a certain new and useful Improvement in Machinesfor Securing ire Hoops Upon Pails and like Structures, of which thefollowing is a specification.

This invention pertains to an improved machine for securing wire hoopsupon pails and like structures.

The main object of the invention is to provide a simple and effectivemachine which will place the hoop under proper tension, twist the sameadjacent the ends, and then drive such ends into the body of the pail.

A further object resides in the provision of means whereby suchoperations will be automatically effected once the pail, with the hooploosely placed thereon, is properly positioned and the machine set inoperation by the depression of a pedal (or in other Similar manner) bythe operator; the hoop and pail being by the depression of the treadlebrought into operative relation with the tensioning, twisting anddriving mechanisms, which mechanisms are, by the same operation ormovement, set in action.

The hoops are initially cut and brought to the proper curvature, theoutwardly-bent ends crossing eachother at substant ally right angles,and with their extremities turned or bent inwardly to form drivlngpoints.

Inasmuch as the upwardly or outwardly extending ends will not, in mostinstances, lie at the same distance from the pail, I provide means forforcing the high end down to a slight extent so as to insure the endsbeings brought into proper relation to the pincer jaws which grasp saidends, drawing them past each other to tension the hoop, and finallytwisting them, after which the ends are driven into the pail body. Themechanism hereinafter set forth in detail effects all of theseOperations automatically.

In the drawings:

Figure 1 is a side elevation of the machine;

Fig. 2 a front elevation thereof;

Fig. 3 a vertical sectional view, on an enlarged scale, showing thetensioning and twisting head. in part. and the drivinghammer;

Fig. 1 a side elevation of such parts;

Fig. 5 a vertical sectional elevation showing the connections betweenthe treadle and the operating mechanism (in part) ,the anvil orsupporting arm for the pail being shown in dotted lines;

Fig. 6 a detail perspective view of one of the supporting elements fortwo of the pincer jaws;

Fig. 7 a similar view of one of the slides employed to force such jaWstogether into clamping relation with the hoop ends;

Fig. 8 a perspective view of the hammer or driver; a

Fig. 9 a bottom plan view of the same;

Fig. 10 a horizontal sectional view, on the line XX- f Fig. 4:;

i Fig. 11 a perspective view of the head to which the pincer jawsupporting elements (Fig. 6) are attached, and a portion of theactuating bar therefor;

Fig. 12 a horizontal sectional view on the line XIIXII of Fig. 1,showing the crank and allied parts employed to impart vertical movementto the pincer mechanism;

Figs. 13, 14 and 15 views showing the hoop ends in their initial anddriven positions, respectively;

Fig. 16 a detail sectional perspective view of various parts of thetwister head or pincer mechanism, the hammer being broken away, one pairof pincer jaws being omitted as well as one of the pincer-actuatingslides;

Fig. 17 a transverse sectional view through the adjustable pressureelements carried by such slide;

Fig. 18 a detail elevation of means employed to control the pause in thevertical movement of the twisting head;

Fig. 19 a detail sectional view of certain portions of the drivingmechanisms; and Fig. 20 a side elevation, partly in section, of theclutch mechanism.

The machine in the embodiment shown is supported by a column 1 havingsuitable blocks 2 secured thereto to bring the parts to their properrelative positions though, of course, a special column may be provided.

The main driving shaft is denoted by 3, Figs. 2 and 5, said shaft havingsecured thereto a pinion 4 which meshes with a large gear 5 which issecured to a ringshaped member 6, Fig. 19, of a Gramme clutch. The hub 7of said clutch is secured to a shaft 8, and an actuating member 9 isrotatably mounted on the hub, said member being notched to receive aseries of rollers 10 interposed between camfaces 11 formed on the huband the inner face or ring 6. A spring (not shown) tends normally tohold the actuating member 9 in such position as to cause the rollers tointerlock the hub 7 and the ring and cause the gear 5 to rotate. Anyform of clutch may, of course, be employed. Normally the clutch is heldin lts unlocked position by a control lever or arm 12 which contactswith a shoulder 13 on member 9, the lever being normallydrawn intoengagement therewith by a spring 14. Shaft 8 is journaled in a pair ofbrackets 15, Figs. 1 and 12, and through its perlodic movement effectsthe operation of the various elements of the machine.

Secured to the supporting column, or more specifically to the blocks 2,is a frame or casting 16, provided with vertically-disposed bearings 17and 18 for a shaft 19, mounted to rotate therein. The upper portion ofthis shaft is round, while the lower part thereof is squared and forms aguide upon which the slide that carries the twisting head and driver orhammer is mounted.

To the upper portion of the shaft there is secured a bevel gear 20,which meshes with a similar gear 21, said latter gear being connected tothe idling element of a second Gramme clutch, denoted generally by 22,Figs. 2 and 5. The actuating member 23 of said clutch, mounted on ashaft 24, carries a sprocket wheel about which passes a sprocket chain25, said chain likewise passing about a large sprocket wheel 26. Saidwheel 26 is secured to and rotates with hub 7 of the first-mentionedGramme clutch.

The control lever 27 for the clutch 22 is fulcrumed at 28 on a fixedbracket or arm 29, the lower end f said lever coacting with a cam30secured to shaft 8, Fig. 5. A spring 31 draws the lower end into operative relation with the cam. It may be here stated that the cam does notallow the clutch 22 to come into operation until the twisting operationof the hoop ends is to be effected or until the operating head has moveddownwardly to such an extent as to bring the bent ends of the hoop intothe same plane or at the same distance from the pail body.

A wheel or roller 32 bears upon sprocket 5 chain 25, said wheel beingmounted upon a lever 33, fulcrumed upon bracket 29.. A spring 34 acts toelevate the rear end of the lever and to press roller 32 against thechain and to thereby take up slack and cause the chain to closely hugthe'small sprocket about which it passes.

The control pedal, denoted by 35, is fulcrumed upon a suitable bracketorcasting 36, and a toggle-lever or link 37 is interposed between the sameand an anvil 38. Said anvil is secured at its rear end to a shaft 39, journaled in a fixed bracket 40, the anvil being provided in its upperface with a retreating stop 41 and at its forward end with adjustablestops 42. Said retreating stop 41 is merely a spring actuated memberadapted to be thrown upwardly into the position shown in Fig. 1 by thespring and which, of course, permits it to be readily depressed when thebucket or pail is placed on top of the same. and pressed down.

Fixed to and extending upwardly from shaft 39 is a'lever 43, and pivotedto the upper end of the lever and projecting forwardly therefrom is alatch-bar 44, which overlies and coeperates with a pin 45 mounted in thelower end of the control lever 12. Depression of the pedal will raisethe anvil, and as a consequence'rotate shaft 39', causing the latch bar44 to swing the control lever and release its upper end from shoulder 13of the main Gramme clutch, permitting said clutch to come into immediateoperation. An adjustable stop 46, carried by bar 44 and coacting withlever 43, determines the moment of contact between the latch bar and pin45.

Mounted in bracket 36 is a shaft 47, carrying a cam 48, said camcoacting with a roller 49 mounted upon. an arm 50 secured to andextending outwardly from lever 37.

A sprocket-wheel 51, Fig. 1, is'secured to' shaft 47 and a chain 52passes about the wheel and a similar wheel 53 secured to shaft 8.Inasmuch as shaft 8 has an intermittent motion a similar motion isimparted to shaft 47 and the cam 48 secured thereto. The purpose of thecam is to limit the initial upward movement of the anvil 38 and to bringit to the height required during the twisting operation of the wire andthen, later, to alloW it to be raised a fraction higher and to press theends of the wire hoop firmly against or slightlyintothe bucket justprior to the actuation of the hammer or driver. The rotation of cam 48permits such action, the operator merely pressing down on the pedal 35.

Shaft 8 is provided with a crank 54, Fig. 12, and a pitman 55 isconnected thereto, said pitman having a bifurcated or forked extension56. The'outer ends-of said extension are pivotally connected by bolts57, which pass, respectively, throu h-the adjacent ends of two pairs oftoggles, composed of links 58 and 59,,the former being fulcrumed attheir upper ends upon cap-screws 60 secured to the fixed bearing 17. VThe lower end of each of the lower links 59 is provided with an.3-shaped slot 61, through which slots extend cap screws 62 that aresecured to a slide 63 mounted on the upper, round portion of shaft 19.Springs 64 serve to hold the links in such position that the screws 62stand in the outer extremity of the lower portion of the iio slot, asshown in Figs. 1 and 18. To provide for a dwell in the downward movementof slide 63, and the operative parts which work therewith (which willpresently be described) I provide rollers 65, which stand in line andcontact with the lower links 59, said rollers being mounted in the upperends of arms 66 secured for vertical adjustment on the fixed bearing 18.As the pitman moves inwardly from the position shown in Fig. 1 therollers contact with the links 59 and the links are caused to move overthe cap screws 62 until the vertical portions of the slots 61 come intoline with the screws; at such time the links will move downwardly,finally bringing the upper ends of the slots into contact with thescrews and thereby causing the slide 63 to again assume its downwardmovement. The time and period of the dwell in the downward movement ofthe slide may be determined by adjustment of the arms or bars 66.

Secured to and extending downwardly from the slide 63 are two bars orlinks 67, said bars passing through suitable guides formed in thebearing 18. Said bars at their lower ends each carry a fixed block 68which enters an annular groove 69 formed in the upper end of thetwisting and driving head. Said head, see Figs. 3, 4 and 16, comprises acentral section 7 O, and two similar side sec tions or plate-likemembers 71 and 71 these three elements being preferably secured togetherby through pins 72 and bolts 73. Each plate 71 adjacent its lower endand upon its inner-face is provided with a transverse groove 74 in whichare mounted blocks 75, 75. Each block is provided with an outerprojecting rounded face, see Fig. 16, which cooperates with thehoop-clamping jaws, as will presently appear. Said blocks are adjustablewith reference to the face of the members 71 and 71, respectively,through screws 76 and set-screws 77, so that they may be positioned tocause the jaws to properly function with hOOps formed of different gagewire. The lower face of member is also recessed to receive the upperends of arms 78 of the hammer, said arms being held in place byset-screws 79. The hammer body (see Figs. 8 and 9) comprises twolaterally off-set members or ections 80 and 80, from'which extend twosimilarly disposed head or driving members 81 and 81", said membersbeing thinner and narrower than the body sections 80 and 80*, therebyproducing shoulders 82 and 83. The lower faces of the driving members 81and 81 are each grooved, as at 84, and said faces also being given aslight upward inclination toward the center of the driver.

As will be seen upon reference to Fig. 3, the squared portion of shaft19 passes down through the upper end of the hammer-carrying slide andits lower end is threaded,

such threaded end forming the means of attachment for a hanger block 85,Figs. 11 and 16. Said block is provided with two pairs oflaterally-extending arms 86, to each of which pairs is pivotallyconnected a hanger block 87, Figs. 6 and 16. Each of the blocks 87 isprovided with two downwardly-extending lugs 88, and to each lug there ispivotally connected a wire clamping jaw 89. There are thus provided twopairs of oppositelydisposed jaws, the jaws of each pair beingsusceptible of being swung toward and from each other, while the twopairs may likewise be swung apart. Coil springs 90, Figs. 8 and 4,interposed between the jaws of each pair serve to eparate said jaws attheir lower ends, and springs 91 secured to pins 92 tend to draw the twopairs of jaws toward each other. Each jaw is provided with aninwardly-projecting port-ion 93 at its lower end and thevertically-disposed face thereof is roughened, as shown in Fig. 3.Normally, the clamping portions stand away from each other a suflicientdistance toadmit of the passage of the bent overlapping ends of thehoop, denoted by 94, therebetween, such po sition being indicated inFigs. 3 and 4. Pro jection of the ends upwardly to too great an extentis prevented by spring arms 95, of which there are four, said armsnormally bridging the space between the clamping aws and contacting theends 94 and serving to bend said ends (one or the other) downwardly sothat they lie in the same plane. Said arms 95, as will be noted uponreference to Fig. 16, are ecured at their upper ends to the inner facesof the jaws 89 and converge toward each other. Each of the jaws 89 isprovided on its outer face with a cross groove 96, and with a raisedportion or projection 97, both adapted to cooperate with thepresser-blocks 7 5, carried by the arms or plate-like members 71 whichbear thereon, and which latter it may be noted are held againstseparation by distance bars 98, Figs. 1, 3 and 7. Each jaw is likewiseprovided with an inwardly-projecting curved shoulder 99, Fig. 3, whichfunctlons with shoulder 82 on the hammer or driver, as will presentlyappear. It will also be seen that the arms 7 8 of the hammer pass downbetween the arms 86 of block 85, F igs. 3 and 16, and that the head 80,80 also passes through and contacts with the walls of the slots denotedby 100 formed in the hangers 87. Thus it will be seen that the jaws andthe operating arms or slides 71 therefor will partake of the rotarymotion imparted to the shaft 19 without any lost motion and the slides71 and the hammer may be moved up and down toward and from the pail andlikewise with reference to the jaws.

The pail, denoted by 101, is primarily assembled by setting up thestares in the regular way, and an iron ring, commonly known as a trusshoop, is driven in place over the staves to hold the pail together. Thebottom is then put in place so that it rests in the groove in the stavesprovided for it. The truss hoop is so positioned on the pail as not tointerfere with cutting of the two grooves in the proper places for theperma nent hoops, which grooves are cut after the pail is set up and thetruss hoop is in place. The number of grooves is, of course, dependentupon the number of hoops to be placed about the pail. The pail havingthus been set up and grooved for the hoops, the hoops are placed inposition in the grooves provided for the same by a helper before it isturned over to the operator of the machine above described. The pail isthen taken by the operator of the machine and placed on the anvil 38with the upper edge thereof against the stop 41, which brings the hoopinto position beneath the twisting and driving head. The operator thendepresses the pedal 35 which acting through the link 37,

the anvil 38 which is moved upwardly to a slight extent, lever 43, andlatch bar 44, rocks the actuating lever 12 and releases the primary ormain Gramme clutch. The movement of the anvil carries the hoop endsupwardly into operative relation with the twisting and stretching jaws.Motion is then imparted from the pinion 4: to the large gear 5 andthrough it to the shaft 8. This will cause the crank 54 to draw thepitman 55 inwardly straightening the toggle links 58 and 59 and causinga downward movement of the links 67 and a consequent down ward movementof the parts associated therewith. Platelike members 71, 71 as they aremoved downward over the jaws cause said jaws to approach each other byreason of the fact that the blocks move out of the grooves 96 and ontothe raised portions 97 of the jaws. This causes the jaws to clamp thebent ends of the hoops and upon a further downward movement theshoulders 82 upon the driving head contact the curved faces or shoulders99 on the jaws and swing the opposite pairs of jaws outwardly, therebystretching the'hoop. While the jaws thus remain clamped a halfrevolution is imparted to the shaft 19 through the operation of theGramme clutch 22 which is thrown into action by the operation of the camupon the shaft 8, the cam being so timed as to actuate the lever 27 andpermit the secondary Gramme clutch 22 to come into operation. Duringthis twisting operation a dwell in the downward movement of the hammeris provided for by the A shaped slots 61 formed in the links 59. When,however, the cap screws 62 reach the upper end of the slots 61 furtherdownward movement is imparted to the driving hammer. Such downwardmovement is likewise imparted to theslides or plates 71, 71 and the barsthereof pass off of the raised portions 97 and release the from theirclamping relation with the ends of the hoop. The hammer, however, islikewise moving downwardly at such time and passes be-' tween the springarms 95, pushing them out of the way and contacting with the upperportions of the bent ends 94 and will drive the same into the pail-body,as indicated in Fig. 15.

As before noted, the cam 48 permits the operator, by pressure on thepedal, to raise the anvil to the height required for the stretching andtwisting 'of the wire and then later, as the cam is rotated, to allowthe anvil to be raised to a slightly greater extent, so that the pailmay be brought into close relation with the driver.

After the first hoop is driven the operator lifts the pail slightly andmoves it forward over the anvil, the stop ll retreating into the anviland stops 42 coming into contact with the bottom of the pail so as tobring the second hoop directly in line with the jaws and driver.

It will of course be understood that the stops 42 will be adjustedinwardly and outwardly according to the distance the lowermost hoopstands with reference to the bottom ofthe pail with which the stopsabut.

From the foregoing it will be seen that the operation of the machine isentirely automatic and all that the operator or attendant has to do isto properly position the pail with reference to the anvil and stops andto then depress the pedal, maintaining the pressure thereon until theoperation of stretching, twisting and driving the hoop ends iscompleted.

Having thus described my invention, what I claim is:

1. In a machine of the character described, the combination of an anvil;a plurality of pairs of jawsadapted to clamp the ends of the hoop; meansfor rotating said jaws and thereby twisting the hoop; and a hammercooperating with the jaws to spread the same and thereby tension thehoop prior to the twisting thereof.

2. In a machine of the character described, the combination of aplurality of jaws; means for forcing said jaws together to cause themtoclamp the crossed ends of the hoop; a hammer adapted, when moveddownward to its full extent, to drive the ends of the hoop into a pail,said hammer likewise coacting with the jaws to spread the same and tothereby tension the hoop;

and means for rotating the jaws prior to the driving action of thehammer to twist the hoop after the same is tensioned.

3. In a machine of the character described, the combination of aplurality of pairs of jaws; means carried thereby for bringing theupstanding ends of the hoops to the same relative distance from the pailbody; means for causing said jaws to clamp the crossed ends of the hoopafter they are thus positioned; a hammer adapted to drive the ends ofthe hoop into the pail, said hammer likewise coacting with the jaws tocause a lateral movement thereof to tension the hoop; and means fortwisting the tensioned hoop prior to the final driving action of thehammer.

4. In a machine of the character described, the combination of aplurality of pairs of jaws, each jaw being pivoted so that it may beswung away from the opposite pair; a spring arm carried by each jaw,said arms normally projecting inwardly toward each other at their lowerends and contacting the upstanding crossed-over ends of the hoop as theparts are moved toward each other; means acting to force the jaws ofeach pair together to clamp the ends of the hoop; a hammer adapted byits descent toswing the pairs of jaws apart and to therebytension thehoop; and means for bodily rotating the jaws while thus clamped andspread to twist the upstanding ends of the hoop, such twisting actiontaking place prior to the final descent of the hammer to drive the endsof the hoop into the pail.

5. In a machine of the character described, the combination of a shaft;means for imparting a step-by-step rotary movement thereto; a hangersupported upon the lower end of the shaft and movable therewith; a pairof blocks pivotally supported at the opposite ends of said hanger; apair of jaws pivotally mounted upon each of said blocks; a membermounted to slide and reciprocate upon the lower end of the shaftaforesaid, such member carrying a pair of downwardly-extending platesand a hammer interposed between said plates; presser-bars carried byeach of the plates, said bars projecting outwardly beyond the inner faceof the plate and contacting with the adjacent faces of the jaws andadapted in their inoperative positionto rest in a groove or channelformed in each of the jaws; and means to reciprocate the sliding memberto cause the bars to force the jaws together and to carry the hammerdownwardly and through the action thereof to cause the opposite pairs ofjaws to be spread apart andto thereby tension the hoop prior to thetwist ing thereof due to the rotation of the shaft, and prior to thefinal driving action of the hammer.

6. In a machine of the character described, the combination of an anvil;a retreating stop located in the upper face thereof; an adjustable stopextending outwardly from the forward end thereof; and associatedhoop-driving means. 1 i

7. In a machine of the character. described,

the combination of a pivoted anvil; a retreating stop located in theupper face thereof; an adjustable stop extending outwardly from theforward end of the anvil; associated hoop-driving means; power-drivenmeans for actuating said hoop-driving means; and means under the controlof the operator for raising the anvil and simultaneously bringing thepower-operated means into action.

8. In a machine of the character described, the combination of aconstantly-driven power shaft; a counter-shaft; a clutch interposedbetween the driven shaft and the counter-shaft; means acting normally tohold said clutch out of operation; a twisting and driving mechanismoperated through the movements of the counter-shaft; a pivoted anviladapted to support the pail upon which the hoop is secured; connectionsbetween the anvil and the means for holding the clutch in its normallyinactive position, said means serving, when the anvil is brought tooperative position, to release the clutch; and means under the controlof the operator, for positioning the anvil.

9. In a machine of the character described,

the combination of a constantly driven shaft; a counter-shaft; a. clutchinterposed between said shafts; means for normally holding said clutchin inoperative position; a vertically-disposed actuating shaft;connections between said counter-shaft and said actuating shaft,including a second clutch; means for normally holding saidsecond clutchin inoperative position; a cam mounted on the counter-shaft foractuating said clutch-con.- trolling means; a hoop-twisting and drivingmechanism carried by the actuating shaft; an anvil underlying thehoop-twisting and driving mechanism; connections be tween said anvil andthe means for controlling the first-named clutch; and means for raisingthe anvil and thereby throwing the clutch holding means out ofholdingposition.

10. In a machine of the character described, the combination of atwisting and driving head; a pivoted anvil; means under the control ofthe operator for raising said anvil; and means working in timed relationwith the twisting and driving head to stay the upward movement of theanvil until the twisting action has been effected.

11. In a machine of the character de scribed, the combination of atensioning, twisting and driving head; a pivoted anvil movable towardand from said head; a toggle mechanism under the control of the operatorfor raising said anvil; and a cam working in timed relation with thehead aforesaid and serving to arrest the upward movement of the anviluntil the tensioning and twisting operations are effected.

12. In a machine of the character described, the combination of atensioning,

' twisting and driving head; a pi oted anvil; a toggle mechanism underthe control of the v operator for moving said anvil upwardly toward andfrom the head aforesaid; a cam cooperating withthe toggle mechanism toarrest the movement of said toggle and consequently the upward movementof the an- 'v1l; and means for rotating said cam in timed relation withthe movements of the head.

13..In a machine of the character described, the combination of an anvilfor sup porting the pail upon which the .hoop is to ,be secured; aplurality of jaws adapted to grasp the crossed-over ends of the hoop; adriver associated with said jaws to spread the same and to therebytension the hoop; means for imparting a twisting movement to thejaws;and means for reciprocating the driver, said means embodying mechanismadapted to impart a dwell to the downward movement of the driver whilethe twisting action is being effected.

14. Ina machine of the character de scribed, the combination of asuitable support for the pail upon which the hoop is to bev secured; a.shaft; means for imparting a step-by-step rotary movement to the shaft;

.a plurality of pairs of jaws pivotally support-ed upon the lower end ofsaid shaft; a sliding memberimounted uponfthe shaft; :1 drl'ver carrledby said member; an actuatingshaft; a pitman secured to said actuatingshaft; toggle links attached to the pitman and adapted to bestraightened thereby; and

' a lost-motion connection between said links alid the sliding member,whereby a dwell Wlll be glven to the driver during the twistingoperation of the jaws. I

15. In a machine of the character de scribed, the combination of a'suitable sup port for the pail to which the hoop is to be secured;a'shaft; means for imparting a step-by-step rotary movement to theshaft;

a plurality of pairs of pivoted sup ported; and carried by the lower endof the shaft;a'slidingmember mounted upon the shaft; a driver secured tosaid sliding member, the driver cooperating with'the oppositely disposedpairs of jaws to spread I the same as 1t is moved downwardly; meanscarried by'the sliding member to cause the jaws to clamp the ends of'thewire hoop inserted-b'etween the same; an operating shaft;

' a pitman connected-to the shaft; to gle links operated by {thepitman,the lower member of each pair of linksbeing provided with an Ashaped slot acap-screwextending outwardlyfromthe opposite sides of theslid- "ing 'member and "pro ecting through the "slots; springs servingto-normally hold'the links so that the cap-screws occupy a position inthe extremity of the lower arms of the slots; and rollers adjustablysupported in line with the toggle links and serving, through'contacttherewith, to cause the links to move with reference to the cap-screwsand to thereby effect a dwell in the downward movement of the slidingmember and consequently a downward movement of the driver andjaw-clamping members, such dwell taking place while the jaws are beingrotated'to effect the twisting operation of the previously-tensionedhoop.

16. In a machine ofthe character de scribed, the combination ofa'plurality of jaws adapted to grasp and clamp the crossed-over ends ofa wire hoop to be secured upon a pail; a spring arm mounted 1 upon theinner face of each jaw, said arms 7 normally extending outwardly andbrldgmg the space between the adjacent faces ofthe jaws, the armscontacting with the crossedover ends of the hoops and serving to bringthem into the same horizontal plane; and a taneously 'bringing 'thepower operated means lnto action.

l8.'In a machine of the character de- 'ing means; and means under'thecontrol ofthe operator for raislng the anvil and s1mulscribed, thecombination of an anvil; means v adapted to clamp the crossed over endsof a hoop; a hammer adapted when moved clown-- wardly to its full extentto drive'the ends of the hoop intoa pail, said hammer likewisecooperating with the clamping means to spread the same {and to therebytension the hoop and means for rotating said clamp ing means-priorto=the driving action of the hammer.

19. In a machine of the character described, the combination of meansadapted to clamp on grasp the crossed ends of a hoop means acting tospread said clamping means and to thereby tension the hoop; and meansfortwisting the hoop after it is tensionedand to thereby lock the hoopagainst spreadingandpositioning the ends for driving.

In testimony name to this specification.

- ROBERT sormnicrmn;

Copies "01' this patent may :be obtained for five cents each, byaddressing the Commissioner of Patents. 7 v .Washington, 1D,. 0.,

whereof I have signed my U

